Improved US/Latin America relations?

End of commodity boom (& therefore the end of loose fiscal policy) is changing regional politics - the "pink tide" of left wing governments is on the wane (e.g Rousseff in Brazil, Kirchner in Argentina, Correa in Ecuador all under pressure).

Therefore expected that pragmatism (i.e. working with the US) might be favoured over ideology (i.e. might see improved relations with the US).